First edition of Nabokov’s final and incomplete novel which he was in the process of writing at the time of his death in 1977. Octavo, original pictorial cloth. Fine in a fine dust jacket. Signed by the jacket designer Chip Kidd on the back flap of the jacket. Illustrated throughout with photographs of the original index cards that comprised the unfinished manuscript with accompanying printed annotations. Introduction by Dmitri Nabokov. Jacket design by Chip Kidd.